Upadhyay, who held a number of necessary portfolios in the course of the BSP authorities in Uttar Pradesh, was suspended from the celebration in 2019.
He, in his resignation, has levelled many critical allegations in opposition to the celebration.
Upadhyay has stated that he has to resign because the celebration has deviated from the ideas and beliefs made by Kanshi Ram.
In a letter despatched to the celebration chief Mayawati, he stated, “I brought to your notice that the party’s cadre is slipping away from us and urged you to review the party’s performance. The truth I told you was neglected. I was suspended from the party. This has hurt the sentiments of my supporters.”
Except Upadhyay, his whole household has joined the BJP.